/*
 * Copyright 2018 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.kie.workbench.common.stunner.forms.backend.gen;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;

import org.kie.workbench.common.stunner.core.diagram.Diagram;

@ApplicationScoped
public class FormGenerationModelProviders {

    private final Iterable<FormGenerationModelProvider<?>> providers;

    // CDI proxy.
    protected FormGenerationModelProviders() {
        this(null);
    }

    @Inject
    public FormGenerationModelProviders(final @Any Instance<FormGenerationModelProvider<?>> providers) {
        this.providers = providers;
    }

    FormGenerationModelProviders(final Iterable<FormGenerationModelProvider<?>> providers) {
        this.providers = providers;
    }

    public FormGenerationModelProvider<?> getModelProvider(final Diagram diagram) {
        for (FormGenerationModelProvider provider : providers) {
            if (provider.accepts(diagram)) {
                return provider;
            }
        }
        return null;
    }
}
